
RTD-200
RTD Temperature Sensor for Ambient Sensing
Installation Instructions
DESCRIPTION
The nVent RAYCHEM RTD-200 is a three-wire platinum RTD
(resistance-temperature-detector) typically used with electronic
control systems that require accurate ambient temperature
sensing. The RTD-200 comes with a 1/2” NPT fitting that installs
to the appropriate conduit box. This allows mounting of the RTD
in a typical ambient location. This also allows for splicing of RTD
extension wire back to the controller.
TOOLS REQUIRED
None
ADDITIONAL MATERIALS REQUIRED
None
KIT CONTENTS
Qty Description
1 RTD temperature sensor with 1/2-in NPT fitting
SPECIFICATIONS
Sensor
Housing 316 stainless steel
Dimensions 3 in (7.6 mm) length 1/4 in (6 mm)
Accuracy ±0.3°F (0.2°C)
Range –100°F to 300°F (–73°C to 149°C)
Resistance 100 ohms +/– .25 ohm at 0°C
Extension Wires
Wire size (each of 3) 22 AWG
Wire dielectric strength 600 volts
Length 6 ft (1.8 m)
Outer jacket Fluoropolymer
Maximum exposure
temperature
Sensor fitting 1/2-in NPT with sealing washer
Approvals Approvals associated with control
diameter
X=0.00385 ohms/ohm/°C
300°F (149°C)
and nut
device, however not to be used in
Div. 1 areas.
This component is an electrical device. It must be installed correctly to ensure proper operation and to prevent shock or fire. Read these
important warnings and carefully follow all the installation instructions. Component approvals and performance are based on the use of
s pecified parts only. Do not use substitute parts or vinyl electrical tape to make connections.

INSTALLATION
The RTD-200 can be terminated directly at the controller
using the supplied 1/2 in NPT fitting. In this configuration,
noadditional extension wire is required.
RTD wired directly to controller
(Distance from sensor bulb to controller
must be less than 4 ft)
Note: RTD should be placed in
a typical ambient location.
1/2 in NPT
fitting
4 ft or less
1/2 in Conduit
Electronic
controller
Terminate at
appropriate
terminal block
RTD-200 WIRING
RTD wired with splice box
Note: RTD should be placed in
a typical ambient location.
1/2 in NPT
fitting
1/2 in Conduit
Electrical Schematic of RTD
Connect the wires as shown.
Field Wiring
White
White (Common return)
Red
Red (Source)
Red
Red (Compensate)
Splice box
(provided by others)
Electronic
controller
Terminate at
appropriate
terminal block
RTD extension wire
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
thermal.info@nvent.com
©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its aliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specications without notice.
Raychem-IM-H56998-RTD200-EN-1805 PN P000000095
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
thermal.info@nvent.com
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
cn.thermal.info@nvent.com
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
thermal.info@nvent.com
nVent.com